Case IH 702-02 - ACM – ACM: Configurable switch 2 circuit fault

Indicates an electrical circuit malfunction associated with a switch designated as 'Configurable switch 2'. The control module is detecting an electrical anomaly such as an open circuit, a short to ground, or a short to power on that specific switch's input circuit.

• MAGNUM AFS Connect
• Magnum Series (e.g., AFS Connect Magnum 180-380)
• Puma Series
• Steiger Series
• Farmall Series (V/N/F/CL)

1. 1

   Locate which physical switch on the armrest is assigned as 'Configurable switch 2' (often used for ISOBUS or auxiliary hydraulic functions).

2. 2

   Use a diagnostic tool (like the Case IH EST or Jaltest) to monitor the ACM 'Measure Values' and see if the switch state changes when toggled.

3. 3

   Inspect the wiring harness between the switch and the ACM for chafing, pinched wires, or disconnected pins.

4. 4

   Check the ACM connectors (e.g., 34-cavity female connectors) for corrosion or backed-out pins.

1. 1

   Replace switch

   Replace the faulty switch.

2. 2

   Repair wiring

   Repair the damaged wiring harness section.

3. 3

   Replace ACM

   Replace the ACM if the internal circuit board has failed.